入侵吸嘴鲶鱼替代商品鱼粉对东华鲈生长、健康和经济效益的影响

IF 1.9 4区 农林科学 Q2 FISHERIES
Shishir K. Nandi, Muhammad A.B. Siddik, Md. Abdullah Al Mamun Hridoy, Mohammad Abu Jafor Bapary, Shakil Hasan, Muhammad Anamul Kabir, Md. Jakiul Islam
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引用次数: 0

摘要

吸水鲶鱼(Hypostomus plecostomus)的引入对孟加拉国淡水生态系统造成了严重影响,对当地鱼类物种构成了重大威胁。这个物种不常被捕捞和食用,这引发了关于是否从自然水体中根除它或重新利用它的争论。本研究探讨了将SMC部分或完全替代商品鱼粉(CFM)用于龙尾鲈(Anabas testudineus)饲料的可行性,评估了其对生长性能、全身成分、血液生化参数、肠道和肝脏健康以及经济可行性的影响。配制5种不同SMC水平(0% [D1,对照],25% [D2], 50% [D3], 75% [D4]和100% [D5])的异蛋白(32%粗蛋白质)和等热量(9%粗脂肪)饲料,饲喂至90天的饱腹期。与D4和D5相比,饲粮D1-D3显著提高了饲粮的适口性、生长指标(末重、增重和特定生长率)和饲料利用率(饲料系数和蛋白质效率;p < 0.05)。D1-D3组的白细胞、淋巴细胞和血小板水平也有所升高(p < 0.05)。不同治疗组血液生化指标差异有统计学意义(p < 0.05),但无明显趋势。D1-D3组表现出良好的肠道完整性,包括丰富的杯状细胞、完整的压实层和发育良好的绒毛,同时肝脏形态改善,尤其是D3组。经济上,D1-D3处理取得了较好的效果,包括产量提高、饲料成本降低、收入、毛利率、投资回报率(ROI)和利润指数(PI)增加。总体而言,用高达50%的SMC代替CFM被证明是有效的,支持了沙蚕的最佳生长、健康和盈利能力,同时提供了一种可持续的策略来减轻这种入侵物种的生态影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Effects of Replacing Commercial Fish Meal With Invasive Suckermouth Catfish on Growth, Health, and Economic Performance of Climbing Perch Anabas testudineus

Effects of Replacing Commercial Fish Meal With Invasive Suckermouth Catfish on Growth, Health, and Economic Performance of Climbing Perch Anabas testudineus

The introduction of invasive suckermouth catfish (SMC) Hypostomus plecostomus has greatly affected the freshwater ecosystems in Bangladesh, posing a significant threat to indigenous fish species. This species is not commonly harvested and consumed, sparking debate over whether to eradicate it from the natural waterbody or repurpose it beneficially. This study explored the feasibility of utilizing SMC as a partial or complete replacement of commercial fish meal (CFM) in the diets of climbing perch Anabas testudineus, assessing impacts on growth performance, whole-body composition, hematobiochemical parameters, intestinal and liver health, and economic viability. Five isoproteic (32% crude protein) and isocaloric (9% crude lipid) diets were formulated with varying SMC levels: (0% [D1, control], 25% [D2], 50% [D3], 75% [D4], and 100% [D5]) and fed to fish until satiety over 90 days. Diets D1–D3 significantly improved palatability, growth metrics (final weight, weight gain, and specific growth rate), and feed utilization (feed conversion ratio and protein efficiency; p < 0.05), compared to D4 and D5. Enhanced levels of white blood cells, lymphocytes, and platelets were also recorded in D1–D3 (p  < 0.05). Blood biochemical parameters varied significantly across treatments (p  < 0.05), but no specific trend was observed. Superior intestinal integrity characterized by abundant goblet cells, intact stratum compactum, and well-developed villi was observed in D1–D3, along with improved liver morphology, particularly in D3. Economically, D1–D3 treatments yielded better outcomes, including higher production, reduced feed cost, increased revenue, gross margin, return on investment (ROI), and profit index (PI). Overall, replacing CFM with SMC up to 50% proved effective, supporting optimal growth, health, and profitability in A. testudineus, while offering a sustainable strategy to mitigate the ecological impact of this invasive species.

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来源期刊
Aquaculture Research
Aquaculture Research 农林科学-渔业
CiteScore
4.60
自引率
5.00%
发文量
464
审稿时长
5.3 months
期刊介绍: International in perspective, Aquaculture Research is published 12 times a year and specifically addresses research and reference needs of all working and studying within the many varied areas of aquaculture. The Journal regularly publishes papers on applied or scientific research relevant to freshwater, brackish, and marine aquaculture. It covers all aquatic organisms, floristic and faunistic, related directly or indirectly to human consumption. The journal also includes review articles, short communications and technical papers. Young scientists are particularly encouraged to submit short communications based on their own research.
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